Improvement in the



CQC. wALwoTH, Application 0f Steam Pipe's to Buildings.

Patented June 22,1875..

i i if! i liv 70 0 I, IML I i s a of Boston, in the county ot' Suffolkand State l Steam-Pipes to Buildings; and I do hereby the ceilings andiioors thereof, a hole is made to the iioor, and covered by atinishingcap, its

.or guards, and packing such sleeves or the UNITED S'rnfrns CALEB C.WALVORTH, OF BOSTON, MASSACHUSETTS.

IMPROVEMENT IN THE APPLICATlON OF STEAM-'PIPES TO BUILDlNGS.

Specification forming part of Letters Patent No. GILNN), dated June 22,1375 application tiled April 23, 1875.

To all whom it may concern:

Beit known that I, OALEB C. W'ALwonrn,

of Massachusetts, haveinvented a new and uset'ul Improvement in theApplication of declare that the following is a full, clear, and exactdescription thereof, which will enable others skilled in the art towhich it pertains to make and use the same, reference being had to theaccompanying drawings, and vto the letters of reference marked thereon,which form a part of this specification. A

In the ordinary application of steampipes to buildings,when the same arecarried through through the ceiling and iloor of each story, throughwhich the pipe is to be carried, such hole being of much larger diameterthan the pipe. Into this hole is inserted a tin tubular guard, ot alarger diameter than the steampipe to be carried through the same, andof sufficient size to allow currents of cold air to pass up between thetwo, such guard at its upper end being turned down upon and nailed lowerend being untlanged, and extending down through the ceiling a distanceequal to the thickness of the plasterin g. Through this guard thesteam-pipe is carried.

This application of the steam-pipe to the building is objectionable onseveral accoun ts,I as the space between the pipe and theguard for theascent of currents ot' cool air not only allows any impure air, smoke,disagreeable odor or noise contained or generated in a room to ascendinto the room above it, but it affords a passage-way for bugs, roaches,85e., to migrate from one room to another. It also affords a veryimperfect barrier against unduly heating or charring of the woodwork inthe immediate vicinity of the pipe.

To remedy these objections is the object of my invention, which consistsin surrounding the steam-pipe with one or more capped sleeves spacebetween suoli and the steam-pipe with asbestus or other non-combustiblematerial, whereby not only a perfect protection against undue heatingofthe wood is attained, but the passage of noise, disagreeable odors,smoke,

&c., from one room to another is colnpletely obviated, the same being aswill be hereinafter referred to and claimed.

In the drawing I have illustrated my invention under two forms, one inwhich the steampipe is untapped, a single sleeve or packingchamber beingemployed, and the other in which a branch pipe is led from thesteampipe, and in which two sleeves or packingchambers are employed.

ln the said drawing, Figure 1 denotes a central and vertical section ofmy invention as applied to a ceiling and oor above it, in accordancewith the rst part of my invention. Fig. 2 is a similar section ot' myinvention as applied to a ceiling and i'loor above it, illustrating thesecond part of my invention. i Figs. 3 and 4 are, respectively, topviews ot' the capplates of Figs. l and 2. Y

In the drawing, A may be supposed to represent a floor of a building; B,one ot` the t'urring-boards, and C the ceiling or plastering. D is thesteam pipe.

In Fig. l, a denotes a hollow cylinder or sleeve, the same beingdisposed concentrically around the pipe D, such sleeve being made otsuch diameter as to leave a free space between the two, so as toconstitute a packing-chainber. b is apap-plate having a hole through it,having a diameter sutticient to receive and closely tit to the pipe l).Snehcap-plate has an annular flange, c, on its under face to enter thechamber or end of the cylinder, such plate being secured to the top ofthe door by means of screws passing through the plate and intothe'tloor. d is a short cylindrical tube, which has an annular ilange,e, project ing from its upper end, the same being aiiixed by means ofscrews to the under face of the t'urring B. The upper end of this tubeeX- tends up into the lower end of the cylinder, while its lower endprojects down below the furring a distance equal to the thickness of theplastering C. f is a screw-cap, embracing thesteam-pipe and screwinginto the bottom ofthe tube d, the said cap having an annular flange, g,upon its lowerend, which screws up against the plastering, and serves tohold the same in place and make a tight joint therewith. The spacebetween the steam-pipe and its enveloping-tube c is to be packed withasbestus or other elastic non-combustible packing.

In Fig. 2, h denotes a hollow tube, which embraces the upper portion ofthe steam-pipe D, and is of a diameter somewhat larger than the pipe,the upper end ot' the tube being hanged and secured by means ot' screwsto the top of the hoor A. The bottom ofthis tube or sleeve is formedwith a contracted neck, and has a hole made through it of the size ofthe steam-pipe D. z' is another screwcap, having a hole made axiallythrough it of a diameter corresponding` with that of the steam-pipe,such latter cap screwing into the upper end of the sleeve It; or, it'preferable, the latter cap may be screwed to the iiange of the sleeve7L. By this construction ot' the tube h a packing-chamber is producedwhich is to be ijlled with asbestus or other elastic heatresistingpacking. h is another hollow sleeve or tube, which is disposed below thesleeve h, and concentrically around the steam-pi pe, such sleeves beingof such a length as to leave a portion of the steam-pipe exposed betweenthe two, the object of this arrangement being to allow the steam-pipe tobe tapped to receive a branch pipe. The tube h is formed with an annulardan ge, j, near its lower end, by whichthe tube is secured by means ofscrews to the under surface of the furring B, such tube extending alittle below the ange, or a distance equal to the. thickness of theceiling or plastering. A screw-cap, l, screws into the lower end of thesaid tube, and impinges against the outer surface of the plastering. Theupper end of this tube or sleeve is contracted, and has a diametercorresponding with the diameter of the-steam-pipe. By this means achamber isformed in the sleeve IL', which, like the sleeve h, is to befilled with asbestus or equivalent elastic heat-resisting packing. m isa branch pipe leading'from the main steampipe, the same being tappedinto the latter between the sleeves h and la'.

Havingdescribed my invention, what I claim 1s- 1. The combination, witha steam-pipe passing up through a ceiling and contiguous door ot' abuilding, ot' a protecting-sleeve, packed as described, and having eachot' its ends provided with a flanged fastening-cap, the lower one havinga screw-cap, g, screwing into its inferior end and against theplastering, the whole being constructed and applied in manner as shown,and for the purpose set forth.

2. The combination, with a steam-pipe passing up through a ceiling and acontiguous floor of a building, of a sectional sleeve or two sleeves,each provided with a packing-chamber and packed as described, the upperone of such sleeves being provided with a fasteningflange and ascrew-cap, and the lower one having a fastening-flange and a screw-capto screw into the inferior end of the sleeve and against the outer faceof the plastering, the whole being substantially as and for the purposeset forth.

3. The combination, with a steam-conducting pipe, of a circumscribingsleeve packed with asbestus or other non-combustible material, suchpacking impinging against the pipe, and filling the space between thelatter and the sleeve, as and for the purpose set forth.

4.-' Ihe combination with a steam-pipe, D, of the tube or thimble d,provided with a flange, e, and the screw-cap f, provided with a ange, g,the said i'lan ges being, respectively, applied to the under surface ofthe furring and the lower face of the plastering, substantially as shownand described.

In testimony that I claim the foregoing as my own .invention I afiix mysignature in presence of two Witnesses.

GALEB C. VALl/VORTH.

Witnesses:

F. P. HALE, F. C. HALE.

